Oldest Bridges in Colorado

The oldest bridge in Colorado is the County Road G over Rio Grande River in Conejos County, built in 1892.

Age, drawn to scale

The 10 oldest in Colorado, one timeline

187519001925195019752000today

1County Road G over Rio Grande RiverCO · 1892 · 37/day 2County Road 67 over East Fork Eight Mile CrkCO · 1894 · 25/day 3Local Drainage over Foreign Trade Zone BLVDCO · 1901 · 435/day 4SW 14th Street over Misc Drainage BasinCO · 1901 · 6.1k/day 5I.9 Road over Local DrainageCO · 1901 · 309/day 6County Road 9d over Capitol CreekCO · 1901 · 2/day 7Platte Avenue over Shooks RunCO · 1902 · 18k/day 8Mesa Avenue over Bessemer DitchCO · 1903 · 992/day 9SH 69 Ml over Texas CreekCO · 1906 · 1.8k/day 10Canon AVE over Fountain CreekCO · 1906 · 1.2k/day For scale: the Brooklyn BridgeNY · 1883 · 111k/day

Each bar runs from the year the bridge was built to today, colored by its overall condition (green good, orange fair, red poor). A white notch marks a recorded reconstruction; many of these bridges have been rebuilt or widened more than once, and the inventory keeps only the most recent date. Daily traffic is the latest count.

When the bridges were built

every bridge in Colorado by the decade it was built

Before 1900pre—

1900s'00—

1910s'108%

1920s'2016%

416

1930s'3017%

221

1940s'4018%

627

1950s'508%

1.2k

1960s'609%

989

1970s'705%

1.6k

1980s'803%

1.7k

1990s'901%

1.1k

2000s'000%

782

2010s'100%

302

2020s'200%

bridges builtshare rated poor

goodfairpoor

Bars are stacked by today's condition rating. 8,989 bridges are counted. Build years before 1900 are counted only when credible.

The Oldest Bridges in Colorado

Bridge	County	Built	Rebuilt	Material	Daily Traffic	Condition
County Road G over Rio Grande River	Conejos	1892	2006	Aluminum/Wrought Iron/Cast Iron	37	Poor
County Road 67 over East Fork Eight Mile Crk	Fremont	1894	1998	Steel	25	Poor
Local Drainage over Foreign Trade Zone BLVD	El Paso	1901		Steel	435	Good
SW 14th Street over Misc Drainage Basin	Larimer	1901		Concrete	6,085	Good
I.9 Road over Local Drainage	Mesa	1901		Steel	309	Poor
County Road 9d over Capitol Creek	Pitkin	1901		Steel	2	Fair
Platte Avenue over Shooks Run	El Paso	1902		Concrete	18,034	Poor
Mesa Avenue over Bessemer Ditch	Pueblo	1903	1973	Concrete	992	Fair
SH 69 Ml over Texas Creek	Custer	1906		Steel	1,800	Fair
Canon AVE over Fountain Creek	El Paso	1906	1990	Masonry	1,195	Fair
Brooklyn Bridge over I278 Fdr Drive Fdr Dri		1883	2016		110,939	Poor
County Road 27 over Arkansas River	Fremont	1907	1965	Steel	41	Poor
County Road 191 over Arkansas River	Chaffee	1908		Concrete Continuous		Poor
W 2nd Street over Oak Creek	Fremont	1908		Concrete	139	Fair
County Road 6 over Arkansas River	Fremont	1910	1960	Steel		Fair
County Road 104 over Huerfano River	Huerfano	1910		Concrete	13	Fair
County RD 40.2 over Road Canyon Creek	Las Animas	1910		Concrete	18	Fair
US 550 Ml over Animas River	La Plata	1910	1965	Concrete	28,000	Fair
SH 1 Ml over Larimer Co Canal	Larimer	1911	1934	Steel	7,900	Fair
SH 26 Ml over South Platte River	Denver	1911	1966	Steel	42,000	Fair
Navajo Road over Piedra River	Archuleta	1913	1935	Steel	927	Fair
25th Street over Fountain Creek	El Paso	1915		Steel	283	Poor
Cache La Poudre ST over Shooks Run	El Paso	1915		Concrete	4,940	Fair
Uintah Street over Shooks Run	El Paso	1915		Concrete	16,577	Fair
Fifth St. over Anderson Arroyo	Otero	1915	1973	Concrete	2,767	Fair
E 3rd Street over Coal Creek	Fremont	1916		Concrete	2,092	Fair
CR 220/squirrel Ck over South Creek	Pueblo	1916		Concrete	72	Fair
CR 213/penn. Ave. over Squirrel Creek	Pueblo	1916		Concrete	137	Fair
CR 218/curtis RD over South Creek	Pueblo	1916		Concrete	36	Fair
Cr277/kenny Pounds over Graneros Creek	Pueblo	1916		Concrete	21	Fair
CR 220/squirrel CR over Squirrel Creek	Pueblo	1916		Concrete	49	Fair
Co RD 54a over Middle Boulder Creek	Boulder	1917		Concrete	70	Fair
Co RD 54a over Middle Boulder Creek	Boulder	1917		Steel	66	Fair
C.r. Hidden Vly over Cottonwood Creek	Fremont	1917		Steel	21	Fair
Railroad Avenue over Greeley Loveland Canal	Larimer	1917	1970	Concrete	1,010	Fair
E 2nd Street over Coal Creek	Fremont	1918	1997	Steel	611	Fair
Railroad Street over Coal Creek	Fremont	1918		Concrete	548	Fair
SH 330 Ml over Big Creek	Mesa	1918	1951	Steel Continuous	1,600	Fair
County Road Hh.5 over Apishapa River	Otero	1918		Concrete	22	Fair
County Road 170 over East Bijou Creek	Elbert	1919	1991	Steel Continuous	14	Poor
Mulberry Street over Larimer Co. Canal No. 2	Larimer	1920	2003	Concrete	12,947	Fair
County RD 91.0 over Furness Arroyo	Las Animas	1920		Concrete	1	Fair
County Road 52 over Harmony No. 2 Canal	Logan	1920		Steel	2	Fair
SH 115 Ml over Coal Creek	Fremont	1921		Concrete	6,600	Fair
US 50 Ml over Huerfano River	Pueblo	1921	1948	Concrete	4,600	Fair
East 4th Street over Greeley Loveland Canal	Larimer	1921		Concrete	2,108	Fair
Monroe Avenue over Greeley Loveland Canal	Larimer	1922	1970	Concrete	473	Poor
Washington Avenue over Greeley Loveland Canal	Larimer	1922	1970	Concrete	1,989	Fair
County Road 22.9 over Cottonwood Creek	Sedgwick	1922		Concrete		Fair
Nfsr 96 over So. Platte River	Park	1923		Steel	200	Poor
Jay Jay Road over Spring Creek	Montrose	1923	1981	Concrete	1,603	Fair
Slate Creek RD over Blue River	Summit	1923	1951	Steel	13	Fair
CR 120/portland RD over Beaver Creek	Fremont	1923		Steel	35	Poor
Cr120/old Portland over Ranger Creek	Fremont	1923		Concrete	42	Fair
SH 115 Ml over Sand Creek	Fremont	1923	1968	Concrete	4,100	Fair
County Road 5 over Sand Creek	Kit Carson	1923	1965	Steel Continuous	66	Fair
US 50 Ml over Graveyard Creek	Bent	1923	1937	Concrete	2,200	Fair
County Rd. 27th LN over St.charles River	Pueblo	1923		Concrete	1,251	Fair
US 287 Ml over Draw	Larimer	1924	1958	Concrete	29,000	Fair
US 287 Ml over Louden Canal	Larimer	1924	1978	Concrete	34,000	Fair
US 50 Bus Ebnd over Arkansas River	Pueblo	1924	2017	Steel	9,000	Fair
Co RD 65/south RD over St. Charles River	Pueblo	1924		Concrete	963	Fair
County Road 23 over Rio Grande Canal	Rio Grande	1924		Steel	53	Fair
County Road 6250 over Montrose And Delta Canal	Montrose	1925	1987	Steel	579	Fair
SH 144 Ml over Jackson Lake Outlet	Morgan	1925		Steel	410	Fair
11th AVE over Cherry Creek	Denver	1925	1984	Concrete Continuous	6,301	Fair
SH 120 Ml over Bear Creek	Fremont	1925		Concrete	190	Fair
SH 120 Ml over Draw	Fremont	1925		Concrete	190	Fair
US 50 Ml Wbnd over Williams Creek	Pueblo	1925	1947	Concrete	18,000	Fair
SH 78 Ml over Boggs Creek	Pueblo	1925		Concrete	1,500	Fair
West 29th Street over L. Loveland Outlet Canal	Larimer	1925	1985	Prestressed Concrete	13,399	Fair
SH 12 Ml over Draw	Las Animas	1925	1935	Concrete	520	Fair
Union Avenue over Uprr Bnsf Ar	Pueblo	1925	1988	Steel	6,216	Poor
County Road 223 over Florida River	La Plata	1926	1997	Steel	84	Fair
US 6 Ml over South Platte Ditch	Washington	1926	1942	Concrete	1,000	Good
I 25 Ml over Teachout Creek	El Paso	1926	2014	Concrete	84,000	Fair
I 25 Ml over Draw	El Paso	1926	2014	Concrete	91,000	Fair
US 50 Service RD over Gunnison Rvr SR	Gunnison	1926	2012	Steel	1,082	Fair
US 50 Service RD over Gunnison River	Gunnison	1926	2012	Steel	845	Fair
US 50 Ml over Draw	Pueblo	1926	1976	Concrete	9,200	Fair
County RD 38.0 over Duran Arroyo	Las Animas	1926		Concrete Continuous	36	Fair
County RD 57.7 over Reilly Canyon Creek	Las Animas	1926	1960	Steel	592	Poor
I 25 Ml over Draw	Pueblo	1926	2008	Concrete	15,000	Fair
Park Avenue over Bear Creek	Jefferson	1926	2013	Steel	220	Poor
County Road 93 over Squaw Creek	Montrose	1927		Steel	10	Fair
County Road 103 over Middle St. Vrain Creek	Boulder	1927		Concrete	56	Fair
County Road 84w over North St. Vrain Creek	Boulder	1927		Concrete	122	Fair
SH 105 Ml over Crystal Creek	El Paso	1927		Concrete	8,500	Fair
US 50 Business over Draw	Pueblo	1927	1937	Concrete	840	Fair
Public Road over Coal Creek	Boulder	1927	2000	Concrete	10,350	Fair
US 160 Ml over North Veta Creek	Huerfano	1927	1956	Concrete	5,300	Fair
Berkley + Small Av over Bessemer Ditch	Pueblo	1927		Concrete	2,493	Fair
13th AVE over Cherry Creek	Denver	1928	1987	Concrete Continuous	7,892	Fair
SH 7 Ml over Draw	Boulder	1928		Concrete	19,000	Fair
Cr123 (3rd Street) over Brush Hollow Creek	Fremont	1928	1975	Steel Continuous	683	Fair
US 24 Ml over Spring Creek	Kit Carson	1928		Concrete	350	Fair
I 25 Ml over Draw	Pueblo	1928	1941	Concrete	35,000	Fair
I 25 Ml over Draw	Pueblo	1928	1941	Concrete	35,000	Fair
I 25 Ml over Gonzales Canyon Creek	Las Animas	1928		Concrete	790	Poor
CR 273/apache City over Graneros Creek	Pueblo	1928		Steel	170	Fair

Oldest bridges in the United States · Longest bridges in Colorado